1, spotlight pen flashlight
As a lighting tool, spotlight flashlight can be used as a lighting power supply in identification, which is very important for observing the surface and internal contents and structure of gemstones. This belongs to consumables. Ordinary gem lovers and sellers always have a flashlight.
3. Polarizer Polarizer plays an important role in distinguishing isotropic, anisotropic and aggregate. For example, garnet is isotropic, and its field of vision should be completely dark when rotating under the polarizer, while ruby is anisotropic, and it should be four bright and four dark when rotating under the polarizer, while jadeite is a polycrystalline aggregate, and its field of vision should be completely bright when rotating under the polarizer.
4. Charles filter
Charles color filter consists of two color filters, which are characterized in that the color filters can only pass dark red and yellow-green light, while all other light is absorbed. Charles filter was first used to distinguish natural emeralds from their imitations, because emeralds are red under the filter, while other green imitations are still green. In addition, it is also practical in the detection of artificially dyed gems and synthetic gems. For example, dyed jadeite and blue glass are red under the color filter, but some gems are not obvious under the color filter. For example, the color change of dyed quartzite is not obvious under the color filter. Therefore, the identification results of Charles filter are generally only of reference value.
5. Electronic balance
Used to measure the specific gravity of gems. Different gems have different densities. For example, the proportion of ruby and sapphire is about 4, that of jadeite is 3.34, and that of nephrite is 2.95. Sometimes it is very effective to identify gems only by measuring their specific gravity, but because of their large size, they cannot be carried around, so they have limitations.